zte's code,first commit

Change-Id: I9a04da59e459a9bc0d67f101f700d9d7dc8d681b
diff --git a/ap/lib/libcurl/curl-7.54.1/docs/cmdline-opts/oauth2-bearer.d b/ap/lib/libcurl/curl-7.54.1/docs/cmdline-opts/oauth2-bearer.d
new file mode 100644
index 0000000..7807167
--- /dev/null
+++ b/ap/lib/libcurl/curl-7.54.1/docs/cmdline-opts/oauth2-bearer.d
@@ -0,0 +1,12 @@
+Long: oauth2-bearer
+Help: OAuth 2 Bearer Token
+Arg: <token>
+Protocols: IMAP POP3 SMTP
+---
+Specify the Bearer Token for OAUTH 2.0 server authentication. The Bearer Token
+is used in conjunction with the user name which can be specified as part of
+the --url or --user options.
+
+The Bearer Token and user name are formatted according to RFC 6750.
+
+If this option is used several times, the last one will be used.